RU95104769A - Method of zinc extraction from acid sulfate solutions - Google Patents

Method of zinc extraction from acid sulfate solutions

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Publication number
RU95104769A
RU95104769A RU95104769/02A RU95104769A RU95104769A RU 95104769 A RU95104769 A RU 95104769A RU 95104769/02 A RU95104769/02 A RU 95104769/02A RU 95104769 A RU95104769 A RU 95104769A RU 95104769 A RU95104769 A RU 95104769A
Authority
RU
Russia
Prior art keywords
zinc
acid sulfate
filtered
sulfate solutions
zinc extraction
Prior art date
Application number
RU95104769/02A
Other languages
Russian (ru)
Other versions
RU2088679C1 (en
Inventor
Л.Г. Баратов
К.З. Хулелидзе
С.Э. Ростованов
Ю.И. Кондратьев
Ж.Б. Кадржанов
Original Assignee
Северо-Кавказский государственный технологический университет
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Северо-Кавказский государственный технологический университет filed Critical Северо-Кавказский государственный технологический университет
Priority to RU95104769A priority Critical patent/RU2088679C1/en
Publication of RU95104769A publication Critical patent/RU95104769A/en
Application granted granted Critical
Publication of RU2088679C1 publication Critical patent/RU2088679C1/en

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Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Manufacture And Refinement Of Metals (AREA)

Abstract

FIELD: zinc hydrometallurgy. SUBSTANCE: method involves refining acid sulfate solution from solid suspensions and impurities by addition of ferric (3+) sulfate at pH = 5.5-6.6 and the following zinc precipitation at pH = 8.5-9.0. Then zinc precipitate is condensed, filtered and heated in autoclave up to 130-170 C followed by filtration and drying. Method can be used at underground leaching and for sewage treatment. EFFECT: improved method of extraction. 1 dwg, 3 tbl

Claims (1)

Изобретение относится к гидрометаллургии цинка и может быть использовано при кучном, подземном выщелачивании, а также при очистке сточных вод. Целью изобретения является повышение содержание цинка в продукте и снижение энергозатрат на сушку. Эта цель достигается тем, что очистку кислых сульфатных растворов от твердых взвесей и примесей осуществляют введением сульфата железа (III) при pH = 5,5 - 6,6 и дальнейшим осаждением цинка при pH = 8,5 - 9,0. Затем осадок цинка сгущают, фильтруют и нагревают в автоклаве до 130 - 170°С, после чего фильтруют и сушат.The invention relates to zinc hydrometallurgy and can be used in heap, underground leaching, as well as in wastewater treatment. The aim of the invention is to increase the zinc content in the product and reduce energy consumption for drying. This goal is achieved by the fact that the purification of acid sulfate solutions from solid suspensions and impurities is carried out by introducing iron (III) sulfate at pH = 5.5 - 6.6 and further precipitation of zinc at pH = 8.5 - 9.0. Then the zinc precipitate is concentrated, filtered and heated in an autoclave to 130-170 ° C, after which it is filtered and dried.
RU95104769A 1995-04-03 1995-04-03 Method of zinc extraction from acid sulfate solutions RU2088679C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95104769A RU2088679C1 (en) 1995-04-03 1995-04-03 Method of zinc extraction from acid sulfate solutions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95104769A RU2088679C1 (en) 1995-04-03 1995-04-03 Method of zinc extraction from acid sulfate solutions

Publications (2)

Publication Number Publication Date
RU95104769A true RU95104769A (en) 1996-12-20
RU2088679C1 RU2088679C1 (en) 1997-08-27

Family

ID=20166267

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95104769A RU2088679C1 (en) 1995-04-03 1995-04-03 Method of zinc extraction from acid sulfate solutions

Country Status (1)

Country Link
RU (1) RU2088679C1 (en)

Also Published As

Publication number Publication date
RU2088679C1 (en) 1997-08-27

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